<template>
  <div>
    <div style="padding: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>

      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增<i class="el-icon-circle-plus-outline"></i></el-button>

      <el-popconfirm
          class="ml-5"
          confirm-button-text="确定"
          cancel-button-text="我再想想"
          icon="el-icon-info"
          icon-color="red"
          title="您确定删除吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>

    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="headerBg"
              @selection-change="handleSelectionChange"
    >
      <!-- @selection-change="handleSelectionChange"获取勾选的数据-->

      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="id" width="80"></el-table-column>
      <el-table-column prop="name" label="名称"></el-table-column>
      <el-table-column prop="flag" label="唯一标识"></el-table-column>
      <el-table-column prop="description" label="描述"></el-table-column>


      <el-table-column label="操作" width="280" align="center">
        <template slot-scope="scope">
          <el-button type="info" @click="selectMenu(scope.row)">分配菜单<i class="el-icon-menu"></i></el-button>
          <el-button type="success" @click="handleEdit(scope.row)">编辑<i class="el-icon-edit"></i></el-button>

          <el-popconfirm
              class="ml-5"
              confirm-button-text="确定"
              cancel-button-text="我再想想"
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
      >
      </el-pagination>
    </div>

    <el-dialog title="角色信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form label-width="80px" size="small">
        <el-form-item label="名称">
          <el-input v-model="form.name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="唯一标识">
          <el-input v-model="form.flag" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="描述">
          <el-input v-model="form.description" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog title="菜单分配" :visible.sync="menuDialogVis" width="30%">
      <el-tree
          :props="props"
          :data="menuData"
          node-key="id"
          ref="tree"
          :default-expanded-keys="expends"
          :default-checked-keys="checks"
          show-checkbox
      >
        <!--        :check-strictly="true" 给菜单做个分离-->
        <!--        :default-expanded-keys="expends" 通过id 设置展开的列表-->
        <!--        :default-checked-keys="checks"  通过id勾选的列表-->
        <span class="custom-tree-node" slot-scope="{ node, data }">
          <span><i :class="data.icon"></i>{{ data.name }}</span>
        </span>
      </el-tree>
      <div slot="footer" class="dialog-footer">
        <el-button @click="menuDialogVis = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleMenu">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>

export default {
  data() {
    return {
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      name: "",
      dialogFormVisible: false,
      multipleSelection: [],
      form: {},
      headerBg: "headerBg",
      menuDialogVis: false,
      menuData: [],
      props: {
        label: 'name'
      },
      expends: [],
      checks: [],
      roleId: null,
      roleFlag: '',
    };
  },
  //   加载时触发
  created() {
    this.load();
  },
  methods: {
    load() {
      //加载2条数据
      this.request.get("/role/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name
        },
      })
          .then((res) => {
            console.log(res);
            this.tableData = res.data.records;
            this.total = res.data.total;
          });

    },
    save() {
      this.request.post("/role", this.form).then((res) => {
        if (res.code === '200') {
          this.$message.success("保存成功");
          this.dialogFormVisible = false;
          this.load();
        } else {
          this.$message.error("保存失败");
        }
      });
    },


    saveRoleMenu() {
      this.request.post("/role/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then((res) => {
        console.log(res)
        // this.$refs.tree.getCheckedKeys() 返回的是你点击勾选的menu 的 id数组
        console.log("$refs.tree.getCheckedKeys()", this.$refs.tree.getCheckedKeys())
        if (res.code === "200") {
          this.$message.success("绑定成功")
          this.menuDialogVis = false;

          // 操作管理员角色的后需要重新登录
          if (this.roleFlag === 'ROLE_SUPER' || this.roleFlag === 'ROLE_ADMIN') {
            this.$store.commit("logout")
            setTimeout(() => {
              location.reload();
            }, 500);
          }
        } else {
          this.$message.error(res.msg)
        }
      })
    },
    //新增
    handleAdd() {
      this.dialogFormVisible = true;
      this.form = {};
    },
    //编辑
    handleEdit(row) {
      console.log("row=", row);
      this.form = row;
      this.dialogFormVisible = true;
    },
    del(id) {
      this.request.delete("/role/" + id).then((res) => {
        if (res.code === '200') {
          this.$message.success("删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    //处理表格多选
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection = val;
    },
    //重置
    reset() {
      this.name = "";
      this.load();
    },
    delBatch() {
      let ids = this.multipleSelection.map((v) => v.id); //[{},{},{}] => [1,2,3]
      console.log(ids);
      this.request.post("/role/del/batch/", ids).then((res) => {
        if (res.code === '200') {
          this.$message.success("批量删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleSizeChange(pageSize) {
      console.log(pageSize);
      this.pageSize = pageSize;
      this.load();
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum);
      this.pageNum = pageNum;
      this.load();
    },
    exp() {
      window.open(`${this.$baseUrl}/role/export`);
    },
    handleExcelImportSucces() {
      this.$message.success("导入成功");
      //刷新数据
      this.load();
    },

    // 分配菜单
    selectMenu(role) {
      console.log('role==', role)
      this.roleId = role.id;
      this.roleFlag = role.flag

      //请求菜单数据
      this.request.get("/menu").then((res) => {
        console.log(res);
        this.menuData = res.data;

        //把返回的长度数据处理成 id 数组
        this.expends = this.menuData.map(v => v.id)
        console.log("expends", this.expends)
      });

      this.request.get("/role/roleMenu/" + this.roleId).then((res) => {
        this.checks = res.data
        console.log("checks", this.checks)
        this.menuDialogVis = true;

        this.request.get("/menu/ids").then(r => {
          const ids = r.data
          ids.forEach(id => {
            // 与选中的id进行对比，如果选中的id不包含没选中的id就设置成flse，因为数据库里与数据库里的父id冲突，如果不这样就会默认全选
            if (!this.checks.includes(id)) {
              // 不在当前，在下一个时钟
              this.$nextTick(() => {
                // true就是选中
                this.$refs.tree.setChecked(id, false)
              })
            }
          })
        })
      });
    },
  },
};
</script>
<style scoped>
.headerBg {
  background-color: #eee !important;
}
</style>